This is the future of USB drives and computers. Users who use FireFox Lite off a USB thumb drive are just the beginning. While there may not be a processor or RAM on your keychain, if you can bring your browser with all your settings, and your documents with you, that's just about as good as bringing a computer along- assuming you have something to plug the drive into.
Personal computers could soon fit entirely on a key ring. Researchers at IBM in New York, US, have developed a way to carry a powerful, personalised virtual computer from one PC to the next, without losing the user’s work.
The trick is to store the virtual computer on a USB key, or any portable device with substantial storage space, like an MP3 player.
The virtual computer’s "soul" - as the researchers dub it - can then be uploaded to a new PC simply by plugging the portable device in. This host machine needs no special software or even a network connection to take on an entirely new personality.
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